VINTAGE ALLEGHENY LUDLUM HEXAGON HOLLOW BAR CALCULATOR
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Ludlum Model 16 geiger counter/analyser - fully working
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Ludlum model 12S Micro-R Gamma scintillator Geiger
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Ludlum Mod 12 with 44-9 Better than a 3 geiger counter
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Ludlum 2200 Ratemeter Scaler +Shielded Pancake GM +Tray
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Stainless Steel Handbook Allegheny Ludlum Steel Co
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2, UG-636A/U *C to BNC* Adapters For Ludlum Instruments
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Ludlum Model 177 Alarm Rate Meter Radiation Detector
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Ludlum Model 2000 Scaler +Model 43-10 Alpha TrayCounter
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Ludlum Pulser Model 500-4 Excellent Wortking Condition
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Geiger counter #9 Ludlum 2 ludlum two with probe
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Geiger counter #3 LUDLUM two Ludlum II with probe
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Ludlum Geiger Counter Model 3 Vintage Tester Radiation
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1959 Stainless Steel Handbook Allegheny Ludlum Steel Co
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